We have everything calculated and figured out, we just need to finish the bedstead and start testing. I have plenty of spare thrust left over on the fan for the puffers. The amount of thrust needed on the puffers is really determined by the time constant of the control response desired. We have spent many hours calculating and measuring moment of inertia about all three axies. We have also added thrust in case of cross wind up to 15 MPH, or worst case scenario that 3 puffer jets are open at any given time. etc etc etc

If you were using 40 psi and did not get any thrust you need to increase your mass flow, get yourself some larger diameter pipe and a supply source that can provide the extra flow. It will work.


For those of you that would like to see it, I have another short video of my Harrier on my web site called "high speed pass"


http://cpl.usc.edu/eschuste/